An enterprise uses Alibaba Cloud MaxCompute for storage of service orders, system logs and management data. Because the security levels for the data are different, it is needed to register multiple Alibaba Cloud accounts for data management.
Score 1
One Alibaba Cloud account is entitled to join only one organization that uses DataWorks.
You are working on a project where you need to chain together MapReduce, Hive jobs. You also need the ability to use forks, decision points, and path joins. Which ecosystem project should you use to perform these actions?
Score 2
The FTP data source in DataWorks allows you to read/write data to FTP, and supports configuring synchronization tasks in wizard and script mode.
Score 1
You are working on a project where you need to chain together MapReduce, Hive jobs.
You also need the ability to use forks, decision points, and path joins. Which ecosystem project should you use to perform these actions?
MaxCompute tasks contain computational tasks and non-computational tasks. The computational tasks require actual operations on data stored in the table. MaxCompute parses the task to obtain its execution plan, and submits the task for execution. The noncomputational tasks require substantial reading of and modification to metadata information. Therefore, the task is not parsed, and no execution plan is provided. The task is directly submitted for execution. The latter one has a faster response speed than the former one. Which of the following operations on the table t_test is a computational task?
In MaxCompute, if error occurs in Tunnel transmission due to network or Tunnel service, the user can resume the last update operation through the command tunnel resume;.
Score 1
Where is the meta data (e.g.,table schemas) in Hive?